That was the percentage-point margin of victory for President Barack Obama four years ago in Virginia, where his 52.6 percent showing came closest to his nationwide share of 52.9 percent.

Obama is making campaign stops today and tomorrow in Virginia, which has 13 electoral votes and is among the 10 or so “swing” states where he and Republican challenger Mitt Romney are spending disproportionate time and campaign funds. Obama’s Virginia win was the first by a Democrat in 44 years.

Some Virginia voters will see the president in person today and tomorrow. Others have seen him and Romney many times on television. Obama, Romney and their surrogates ran ads 15,311 times on Virginia-based television stations in the 30-day period ended July 9, according to New York-based Kantar Media’s CMAG, which tracks advertising on national network, national cable and local broadcast stations. Another 1,287 ads ran on Washington, D.C., stations that reach residents of populous northern Virginia suburbs near the nation’s capital.

The totals don’t include an Obama campaign ad drawing a contrast with Romney on tax policy that first aired this morning in Richmond, CMAG data show.

Here’s a look at some Bloomberg stories today about the election and the economy:

OBAMA IN THE OLD DOMINION: The Obama campaign is using the political strategy of “microtargeting” to rally support among key voter blocs of the Virginia electorate, Kate Andersen Brower writes in a preview of the president’s trip. Obama’s first stop is in Virginia Beach, the most populous city in the state, a traditionally Republican-leaning area that he lost by just 50 percent to 49 percent four years ago.

YOU’RE SO BAIN: Obama is making an issue of Romney’s service at Bain Capital, the Boston-based private-equity firm he co-founded. “And when you look at the record, there are questions there that have to be asked,” Obama said in a television interview that aired today on “CBS This Morning.” The president said that Romney’s focus was making money, not creating jobs.

LIVING LARGE: The percentage of new single-family homes greater than 3,000 square feet grew by one-third in the past decade, even as the economy struggles, Frank Bass writes.